Development of flexible and high sensitivity graphene foam based pressure sensors

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Abstract

Pressure sensors are widely used devices in a variety of sectors from automotive, medical, industrial and consumer devices. These applications can range from ultrasensitive e-skin, touch screen displays, medical diagnostics and health monitoring [1]. To compete with current industrial pressure sensors, a new easily fabricated, reproducible, and highly sensitive pressure sensor compatible with temperature sensitive substrates (plastic, fabrics, paper etc) is required. Within this paper the fabrication process is described, as well as showing the use of PDMS as a protective layer. Characterization of the fabricated sensors showed a sensitivity of 0.0418 mV/kPa over a range from 1 to 50 kPa. Cyclic testing showed that the use of a protective PDMS coating increased the durability of the sensors, keeping the voltage produced steady with no visible drop after large numbers of presses.
Original languageEnglish
Title of host publicationProceedings of the 2021 13th Spanish Conference on Electron Devices (CDE)
Subtitle of host publicationSevilla, Spain 9-11 June 2021
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages141-144
Number of pages4
ISBN (Electronic)9781665444521
ISBN (Print)9781665444521
DOIs
Publication statusPublished - 25 Jun 2021

Publication series

NameIEEE Conference Proceedings
PublisherIEEE
ISSN (Print)2163-4971
ISSN (Electronic)2643-1300

Keywords

  • pressure sensors
  • fabrication
  • temperature sensors
  • sensitivity
  • sensor phenomena and characterization
  • touch sensitive screens
  • medical diagnostic imaging

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